Padlock



K. WIESER.

PADLOCK. APPLICATION FILED FEB. H. [92!- Patented Mar. 21, 1922.

UNITED STATES PATENT OFFICE.

KARL wrnsnn, or WEBIJEN. GERMANY, assrerzroit r0 ramp. Kiwrr AKTIENGESELL- SCI-IAFT, or ESSEN-DN-THE-RUHR, GERMANY.

PADLOGK.

Specification of Letters Patent.

Patented "Mar. 21, 19.22.

Application filed February 14, 1921 Serial No. 444,861.

To (Alli/17mm it may concern:

Be it known that I, KARL lVrnsnn, residing at \Verden, Ruhr, Germany, a citizen of the German Republic, have invented a certain new and useful Improvement in Padlocks, of which the following is a specification.

This invention relates to a padlock having a bolt adapted to shift aside when the shackle is moved into the locking position and subsequently to, automatically shoot into its own locking position, theshackle being secured in this position by the bolt. {The object of this invention is to provide in locks of the described type means for increasing the security a ainst the liability of being opened by secret practices.

One embodiment of the subject matter of the invention is illustrated in the annexed drawing in which Fig. 1 shows a sectional view of the padlock with the parts in the locking position,

Fig. 2 showsja view corresponding to Fig. l with some parts in different position,

Fig. 3 shows on an enlarged scale a detail of Fig. 1, looking from the right,

Fig. t shows a section on line 44t in Fig. 3, looking from the top, and V Fig. 5 shows a section on line 55 in Fig. 3, looking from the left.

Referring to the drawing, A denotes the casing. B the shackle, the bolt and D the plug of the padlock. said plug being rotatably lodged within a bushing attached to the casing A. The shackle B is shiftablv disposed relatively to the casing A in the manner shown in the drawing (Figs. 1 and 2). The shorter shank, 5 of the shackle B is adapted to co-operate with the bolt C in the manner hereinafter described.

The bolt C is arranged within the casing so as to be both displaceable and capable of being rocked. To this end the bolt C engages. by means of a slot, a stud K fixed on the casing A. A spring M secured to the casing by means of a pin L'acts upon the bolt C. said spring bearing up with one extremity against the end of the bolt remote from its locking extremity whereas the other extremity of the spring M bears up againstthe underside of the bolt and tends to shift it into the locking position. The plug D is connected to the bolt C by means of a post N screwed to the plug and engaging a recess 0 of the bolt C.

The shank Z2 of the shackle B has a notch b which the bolt Q is adapted to engage by means of a projection 0 At its lower end the shank b is provided, at the side facing the bolt G, with a flattened face 12 and carries a special barring member B which, when the lock is in the locking position, forms the outer portion of the lower wall of the notch 7)"; Said barring member R is adapted to rock about a pin 07 within a slot 6 (see Figs. 3 to 5) of the shank Z9 and is'provided with lateral abutments r adapted to bear up against the front end surface of the shank?) when the lock is in the locking position. The centre of gravity of-the barring mernber R is disposedin su'chwise that this latter. when the padlock hangs in the vertical position will swing, by its own weight out of the position shown in Fig. 2 into the position in which it will be enabled to bear up underneath the nose 0 of the bolt C (Fig.1) However, in order to cause this motion of the barring,;1nember R to be unfailing-ly brought about inany position which the.

lock may happen to assume, there is pro vided a spring S fixed to-the pin L carrying the spring M of the bolt C.

hen-the lockis. opened, the bolt C is shifted backwards to such an extent "that its nose (2'? will, disengagethe notch b and thus release the barring member B, so that the shackle B may now spring open. The pressure on the key being released, the bolt C returns into the locking position, in which it is secured by the locking device N, 0 under the action of the spring M. As now the padlock is closed by depressing the shackle B. this latter strikes with its front .end surface against the nose 0 of the bolt C and thus forces the latter to oscillate about the axis of the pin K. The bolt C will rock out to such an extent that it will come to glide off from the flattened face 6 of the shackle B and to turn the barring member B into the position shown in Fig. 2. Then the bolt C will release, however, said member again as soon as its nose o has attained the upper wall of the notch 6 Hereupon, the

' prising a casin lay within the groove 0 formed in the bolt 7 as to enable said bolt to merely attain the particular position in which it comes to glide 011' from the flattened face b (Fig. 2), then it will prove impossible to open the padlock even if, While at the same time depressing the shackle B, it be attempted to forcibly press the bolt C down by means of a pin or wire inserted close to the shank b of the shackle into the casing A; and this for the reason that the barring member R will continueto bear up against the underside of the nose 0 of the bolt even if this latter has been depressed into the lowermost position which the locking device 0 N will allow of being assumed.

Claims.

1. A padlock having a bolt adapted to shift aside when the shackle is moved into the locking position and subsequently to shoot automatically into its own locking position, said bolt being secured in this position by a locking device, characterized y the fact that the shackle (B) of the padlock carries a barring member (R) which when the padlock is closed, ives room and, when the padlock is in the ocked position, bears up underneath the bolt (C).

2. adlock accordingto clalm 1, characterize by the fact that the barring member is pivoted to rock in such a manner that when the padlock is hanging in the vertical position, said barring member will shift into the "barring position under the action of its own weight. g

3. A padlock of the class described coma shackle, a bolt, locking means forsaid olt, a pivoted barring member carried by one end of said shackle and adapted to be engaged. by said bolt to secure said shackle in its closed position, a double ended spring carried by said casing and having its ends bearing against one end and the underside of said bolt respectively and a second spring also carried by said casing and adapted to be engaged by said barring member, substantially as and for the purpose set forth.

4. A padlock of the class described comprising a casing, a shackle, a bolt for securmg said shackle in closed position, operating means embodying a lock for said bolt and a pivotally supported barring member carried by said shackle for engagementwith said bolt, substantially as and for the purpose set forth.

5. A padlock of the class described com prising a casing, a shackle, a bolt, means embodying a lock for operating said bolt and for securing it in its operative position, said bolt cooperating with one end of said shackle to secure it in closed position, a piv otally mounted barring member, supported in the end of the shackle and cooperating with said bolt whereby when said shackle is moved pastsaid bolt the barring member will be swung to clear the bolt and will thereafter swing back into position to be engaged by said bolt, substantially as and for the purpose set forth,

The foregoing specification signed at Essen, Germany, this 19th day of October, 1920. I

KARL VVIESER.

In presence of 1 HANS GOTTSMANN, ,7

JorrANN Declines. 

